Disgraced comedy legend and ultimate TV dad Bill Cosby may not make it to his highly anticipated retrial due to rapidly declining health. Sources tell RadarOnline.com that the scandalized ­sitcom star, whose trial for the 2004 sexual ­assault of Andrea Constand ended in a mistrial on June 17, is losing his mind — and facing death!

“Bill is showing signs of dementia,” claims a source close to the fallen favorite, whose case ended in a mistrial. “Some of his reasoning skills seem...